Wire-retainer and insulator-guard.



G. W. CRAWFORD, Jn. WIRE RETAINER AND INSULATOB GUARD.

APPLICATION rum) APR. 25, 1910.

980,495. Patented Jan. 3,1911.

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GEORGE W. CRAWFORD, JR., OF MORGANTOWN, INDIANA.

WIRE-RETAINER AND INSULATOR-GUARD.

Specification of Letters Patent.

Patented Jan. 3, 1911.

Application filed April 25, 1910. Serial No. 557,620.

To all whom it may concern:

Be it known that I, GEORGE W. CRAWFORD, Jr., a citizen of the UnitedStates, residing at Morgantown, in the county of Morgan and State ofIndiana, have invented a new and useful ire-Retainer and Insulator-Guard, of which the following is a specification.

The object of my invention is to produce a simple device, which. may beeasily and cheaply manufactured, by means of which wires, such astelegraph and telephone wires may be readily connected to glassinsulators in such manner that slack in the wires may be readily takenup without disturbing the connection with the insulator, and also suchas to form a guard or protector for the insulator to prevent breaking.

The accompanying drawing illustrates my invention.

Figure 1 is an elevation of my device in position upon an insulator andwire, and Fig. 2 a plan.

In the drawings, 10 indicates an ordinary insulator having one or morewire-receiving grooves 11 adapted to receive a wire 12.

My retainer and guard consists of a cylindrical serpentine of wire 13,the tip 14 of each convolution being bent inward slightly as shown. Theends of the wire, from which the serpentine 13 is conveniently formed,may be secured together at 16 in any suitable manner, either by welding,as shown, or by interlocking hooks and eyes. The guard is diametricallyexpansible and longitudinally so dimensioned that its tips 14 willunderlap a projection or end of the insulator 10 so as to retain theguard in position. It will be readily apparent, therefore, that, byslightly expanding the guard diametrically it may be readily slipped toand from position on the insulator and that wire 12 may be readilyinserted by springing one or more of the convolutions outwardly to admitthe wire, any desired rigidity of connection between the wire andinsulator being obtained by carrying it beneath any desired number ofconvolutions oi the guard. It will also be readily apparent that, bypulling lengthwise upon wire 12, any slack may be taken up betweeninsulators without the necessity oi disconnecting any retaining parts asis now necessary where the wire is retained upon the insulator by tiewire.

The structure, when in place, thoroughly protects the insulator againstbreakage by articles thrown against it.

I claim as my invention:

1. A retainer and guard for insulators consisting of a cylindricalserpentine.

2. A retainer and guard for insulators consisting of a cylindricalserpentine having inwardly bent tips.

In witness whereof, I have hereunto set my hand and seal at Morgantown,Indiana, this 21st day of April, A. D. one thousand nine hundred andten.

GEORGE W. CRAWFORD, JR.

